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Burglar Alarm Cost Calculator UK

Estimate the 2026 cost of installing a burglar alarm — by system type, property size and add-ons. Instant result, no email needed.

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Estimate Your Burglar Alarm Cost

Choose your system, property size and any extras for an instant 2026 fitted-price estimate from NSI- and SSAIB-approved installers. Monitoring is an added monthly cost (see below).

2026 Price Guide

Burglar alarm prices, 2026

SystemTypical 2026 cost
Bells-only (audible) alarm£500 - £800
Professionally monitored alarm£750 - £1,300 + £15-£40/mo
Smart alarm + CCTV package£1,200 - £2,500+

Monitored systems add £15-£40 a month for an Alarm Receiving Centre, plus a one-off ~£50 police URN fee for police response. Full detail in the burglar alarm cost guide.

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FAQs · 2026

Burglar Alarm cost questions

A bells-only wireless alarm typically costs £500-£800 fitted in 2026, a professionally monitored system £750-£1,300 plus £15-£40 a month, and a smart alarm with CCTV £1,200-£2,500+. London and the South East run 20-30% higher.
No — the estimate is the install cost. Professional 24/7 monitoring via an Alarm Receiving Centre adds £15-£40 a month, and police response also needs a confirmed alarm and a one-off ~£50 URN fee, arranged by an accredited installer.
If you want a response when you are away, or your insurer requires it, yes. A monitored alarm calls a keyholder or the police; a bells-only alarm only sounds locally. Police response is only available on a confirmed, monitored system with a URN from an NSI/SSAIB installer.
It can. A professionally installed, NSI/SSAIB-certified alarm may earn a premium discount and keeps cover valid where an alarm is a condition — a DIY or non-accredited system can mean a claim is reduced. The discount varies by insurer.
Most homes use a Grade 2 system (BS EN 50131); higher-value homes and many commercial insurance conditions need Grade 3. The grade is set by your insurer and a risk assessment, so confirm it before installation.

Last reviewed June 2026. Alarm prices reflect 2026 UK supply-and-fit quotes from NSI/SSAIB-accredited installers, modelled as base-by-type plus property size and CCTV, with a regional uplift. This calculator gives a budgeting estimate, not a quote. Editorial standards: /editorial-standards. See all free calculators or the cost guide hub.